Improvement in fruit-cans



w. POLY'BLANK & e. POLYBLANK'.

Improvement in Fruit Cans.

[$10,124,156 -PatentedFeb.27-,1872.

1mm Z0229 UNITED STATES PATENT 'OEEIoE.

WILLIAM POLYBLANK AND GEORGE POLYBLANK, OF CLEVELAND, OHIO.

IMPROVEMENT lN FRUIT-CANS.

Specification forming part of Letters Patent No. 124,156, dated February27, 1872.

To all whom it may concern:

Be it known that we, WILLIAM POLYBLANK and GEORGE POLYBLANK, both ofCleveland, in the county of Ouyahoga and State of Ohio, haveinventedcertain new and useful Improvements in the Construction of Tin Cans andCovers for Preserving Fruit and we do hereby declare that the followingis a full and exact description of the construction and uses of thesame, reference being had to the accompanying drawing making a part ofthis specification, in which- Figure 1 is a perspective view of can andcover complete. Fig.2 is a section of the body of can and cover, showinghowit fits by wedging tight in its place. Fig. 3 is a section of thecover, showing the pitch atA, canal B, angleedge 0. A depression is madein the pit-ch A for lifting the cover.

Our improvements relate to the construction of tin preserving-cans withopen mouths and tight-fitting covers, which are made airtight bysealing-wax or other suitable material.

The open-mouth can gives greater facility for filling and cleaning thancans made with use; and our 'cover is so constructed for holding wax,and fitted to the body of the can so tightly,that sealin gits contentsis accomplished without the usual objection of holding the cover down,as in cans with loose-fitting covers.

It is well known that in sealing cans with loose covers the applicationof heat will raise the cover out of its true place, thus making itdifficult to obtain an air-tight joint. Our cover, Fig. 3, letter O, hasan edge beveled at an angle corresponding to the bevel on the upper edgeof the can, Fig. 2, letter E, forming a wedge-shaped mouth. Thus thecover may be pressed or even hammered as tight as desired. The cover ispressed by means of suitable dies, and is in one'piece. The bevel on thecan is swaged by suitable rollers fitted to a tinners machine. 1

Vv'ha-t we claim as our improvements, and desire to secureby LettersPatent, is

The flanged cover A B O, in combination with the flaring edge E of thecan, substan tially as shown and described.

WILLIAM POLYBLANK. GEORGE POLYBLANK. Witnesses:

FREDERICK SoHILL, LULWIG MEEsE.

